Mechanics

MERCURY MOUNTAINEER BLOWER MOTOR PROBLEM

1998 Mercury Mountaineer • 160,000 miles

My heater works but on blows out at a low setting weather in set it to high or low but my rear one works just fine
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Carlosfernandez
October 17, 2012.



Can you please rephrase your question?

KHLow2008
Oct 17, 2012.
When I turn on the heater it blows out as if it is on the lows setting when I turn it up it still blows out low. My rear unit blows out high and low.

Tiny
Carlosfernandez
Oct 17, 2012.
While I drive the faster I go it seems to blow out a little faster but really no change. I can only feel it when I put my hands on the vent.

Tiny
Carlosfernandez
Oct 17, 2012.
The air flow is low. If the blower motor noise changes when setting is increased it means air restriction in the air flow circuit. Check the cabin filter if equipped.

KHLow2008
Oct 17, 2012.
I will check now and see if that is the problem thanks for the response

Tiny
Carlosfernandez
Oct 17, 2012.
No cabin air filter. The noise cant tell any different

Tiny
Carlosfernandez
Oct 17, 2012.
Since the blower fan motor is not responding to the control, it could be a failing fan motor, a fault with the blower motor switch controller.

Is your HVAC system manual or automatic?

KHLow2008
Oct 17, 2012.
Not sure, I tested my power to the blower and it is getting power if that helps.

Tiny
Carlosfernandez
Oct 18, 2012.
Automatic means the control panel has a function for Auto.

Seems the notification has a problem and I am not being nootified of any replies.

KHLow2008
Oct 18, 2012.